<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>Title</title>
</head>
<body>
<form action="#">
    <select name="city">
        <option>---请选择城市---</option>
        <option value="sh">上海</option>
        <option value="bj">北京</option>
        <option selected value="gz">广州</option>
        <option value="sz">深圳</option>
        <option value="hz">杭州</option>
    </select>
</form>
</body>
</html>